Method of packaging boards and package thereof



Feb. 17, 1959' B. c. BLAIR 2,873,852

METHOD OF PACKAGING BOARDS AND PACKAGE THEREOF Filed April 29, 1957 INVENTOLR. Boyd C. 5101/.

ATTORNEYS.

OF'PA'CKAGING'BOARDSANDv l. Mimron PACKAGETHEREOF Brackett, doing business as 'The 'Bi'ackett' S h-ip ing chin'eo.,-Topeka,K 1

'pp cat q Arm 2 7, s 55 m "This invention relates to ,p s ns iolibluinkdliing rd building boards or like strips such as are cornmoplyire ferred to as'plaster board, lathand the like, 'an'dfmorje particularly to the method of combining a .pluralityQdf boards in a unit package or bundle and the unitpack age thereof for shipping, handling. andstoringof builds o n manne s feq iu's su tant a economies therein.

Building boards such asplaster board, plaster lath;and the-dike are commonly formed of gypsum, plaster and other suitable materials rollecLand dried in a flat board g:

membenghaving oppositefaces and certain edges :cov'ered with suitable'papfir... Ithas been common practice for-.21

plurality of such boards, plaster lath or the like to be stacked, a corrugated board or other suitable wrappingmaterial placed therearound, and then wire secured around the jacket to hold the bundle in a package. Plas-' ter lath has also been secured in a stackby adhering a paper jacket thereto; however, removal of the paper jackets is time-consuming, they can be damaged in shipment resulting in the bundle falling apart, and if wire or the like is used it can cause injury to workmen, damage to the lath and also difficulties in removing lath from the bundle.

The principal objects of the present invention are to l provide a unit package of building board in which the respective boards are removably held together by strips of adhesive coating thereon; to provide such a bundle having selective marginal portions adhesively secured together with other portions unattached for facilitating gripping and separating said boards; to provide a method of packaging or bundling building board wherein a plurality of boards are stacked in fanned relation and adhesive applied to selective exposed normally contacting faces, moving the boards back into stacked aligned condi: tion and applying pressure to effect securing engagement of the adhesive coated contacting surfaces; and to provide a building board unit package and method of making same that is efiicient, economical, yet facilitates the bandling, shipping and storing, as well as the separation of the boards from the package.

In accomplishing these and other objects of the present invention,'I have provided improved details of structure,

the preferred form of which is illustrated in the accom- Y panying drawings, wherein:

Fig. l is a diagrammatic perspective view of apparatus for performing the sequence of steps of the packaging I Patented "Feb: 1751-959 ore in-detailto the drawings;

t' h r.the' l ike,-which pejferably includes 'ai body l I 2' the e c r ppo te i 64 h a slh I ed an I delivered from. a board ct shownfcut'to 's izje, and a plurality of the e t orm t e' t ck, 1 w rein th o d ha n Ts peri p ti ag to, f relationship withtheir dppos'ite side edges 8' ahtl9 and opposite end edges 10 arrdl l flush or aligngd The-stack 17 is preferabl" s ar mov atera l b o he 1 wh r b d a e 'iii 'conse'c'utive overlapped relation with the adjacent side e es .un m1y-$2 9d t psse mare pa :P io of the'joppositefacest 'andS. "In the illustrated structure, e j s. 7' o t e dfive pt v i .fedTbs eh; i l guiderollersljsto fan the boards whereby a marginal side'portion' 1'6 theluriderface 17 of each of thefinished boards above lowermost board of thestack is exposed and the apparatus marginal portion 18on the opposite 's'ideis exposed as illustratedin Fig. 3. 'Asuitable adhesive 1-9--is"then applied-tm'selected portions of the marginal 'fa'ces 16=and=18. 1 In-the-illustrated method, the stack 7 isximoved:between isprays direeted toward the exposed.

marginal portions 16 and 1-8 to spray theadhesivethe'reon and suitable shields 16' and 18' are positioned whereby the adhesive is applied only to the marginal surfaces to be coated. The adhesive 19 is preferably a fast-setting glue or adhesive such as a water emulsion synthetic resin type; however,. other suitable types of adhesive may be used, such as, conventional pressure-sensitive adhesives.

However, it is preferable that a fast setting adhesive be used in order to reduce the processing time in making the bundle.

After the adhesive is applied, the stacked pieces are moved to position the edges thereof flush as by moving the stack between suitable guide rollers 20, and then after the edges of the pieces are flush, pressure is applied to the stacked boards as by pressure rollers 21 cooperating with the rollers 22 supporting the conveyor 12, or other suitable pressure applying means to hold the stacked boards under pressure during the time required for setting of the adhesive. After the adhesive is set, the completed bundle or package 23 is delivered from the conveyor 12 and is then ready for storing or shipping. When the adhesive is applied by sprays, the side edges of the boards or lath should be protected whereby the adhesive is not applied thereto in order that there be no incidental deposits of adhesive that would interfere with plaster adhering to the lath.

Building material commonly called plaster lath are usually approximately 16 inches wide and 48 inches long, but may be of different size as desired. It is preferred that the adhesive on the margins of the boards or lath be only in sufficient area to suitably hold the boards or lath together. i In the bundle shown in Fig. 2, the adhesive is applied to the lath in an area spaced from the ends thereof, as, for example, in strips approximately Mas-inch wide and 24-inches long, leaving 12 inches at each end unattached. This holds the lath together but permits the user to grasp the ends and separate same for facilitating the stripping of one board from the others in the stack. While the adhesive is shown as being applied in a continuous strip intermediate the ends and spaced therefrom, it is to be understood that the adhesive may be in a series of seperated or spaced strips or areas as desired. It is further to be understood the length of the adhesive areas may be varied as long as the total areas albuildin'g hoard such as plaster-board,

ble 'coriyfey'orffn between suitable bundle.

only at said-marginal portions, said lines ofadhesive "at In the form of bundle illustrated in Fig. 5, the elongated lath are fanned endwise and the adhesive applied to the end margins, and then the lath-or boards jogged whereby the edges are flush and pressure applied to hold the'boards together in the bundle duringse'tting' of the, adhesive. In

this forni, the user would grasp the boards or lathiintermediate the ends thereof and separate same to strip one lath from the remainder of the bundle. While in the process the adhesive is shown as being applied by sprays, it is to be understoodit could also be applied by suitable rollers, brushes 'or the like, to the marginal portions or other suitable areas of the adjacent faces of the boards in the stack. It is to be understood that while I have illustrated and described one form of my invention, it is not to be limited to the specific form or arrangement of parts herein described and shown except insofar as such limitations are included in the claims.

What I claim and desire to secure by Letters Patent is: 1. A unit package of plaster vlath comprising, a stack of superimposed elongate plaster lath each having a'paper covering thereon, said paper covered lath each having opposite flat faces and side and 'end edges, said paper covered lath being in face to face relationship with the next lower lath in the stack and with their side edges in substantial alignment, and a line of adhesive between certain marginal portions of adjacent faces of the paper covered lath at oppositeside edges thereof for securing eachsaid paper covered lath to the next lath in the stack said marginal portions being spaced along the length of the respective side edges whereby portions of said lath along the side edges thereof are unattached and may be grasped and pulled to separate the respective lath from the next lath in the stack.

2. A unit package of plaster lath comprising, a stack of superimposed elongate plaster lath each having a paper covering thereon, said paper covered lath each having opposite flat faces and substantially parallel opposed side and end edges, said paper covered lath being in face 'to face relationship with the next lower lath in th e stack and with their respective opposite edges in substantial alignment, and a line of adhesive between certain marginal portions of adjacent faces of'the paper covered lath along said aligned edges for securing each said paper covered lath to the next lath in the stack only along said lines of adhesive, each said line of adhesive terminating in spaced relation from the ends of said aligned edges of the paper covered lath whereby end portions of the aligned edges of one of the paper covered lath may be grasped and pulled to separate said one lath from the next lath in the stack.

References Cited in the file of this patent UNITED STATES PATENTS I 2,675,909 Auerbach Apr. 20, 1954 

